diff --git a/htdocs/admin/triggers.php b/htdocs/admin/triggers.php
index 980bd9ef4bb..2b930b8afc1 100644
--- a/htdocs/admin/triggers.php
+++ b/htdocs/admin/triggers.php
@@ -1,5 +1,5 @@
 <?php
-/* Copyright (C) 2005-2012 Laurent Destailleur  <eldy@users.sourceforge.net>
+/* Copyright (C) 2005-2013 Laurent Destailleur  <eldy@users.sourceforge.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/htdocs/core/class/interfaces.class.php b/htdocs/core/class/interfaces.class.php
index 78276c27885..db39f7bab86 100644
--- a/htdocs/core/class/interfaces.class.php
+++ b/htdocs/core/class/interfaces.class.php
@@ -259,6 +259,12 @@ class Interfaces
             $modName = $modules[$key];
             if (empty($modName)) continue;
 
+            if (! class_exists($modName))
+            {
+				print 'Error: A trigger file was found but its class "'.$modName.'" was not found.'."<br>\n";
+            	continue;
+            }
+            
             $objMod = new $modName($this->db);
 
             // Define disabledbyname and disabledbymodule